Mortar box



April 4, 1933- J. A. WHELAN MORTAR BOX Filed Aug. 20, 1931 2-Sheets-Sheet April 4, 1933.

J. A. WHELAN 2 Sheets-Sheet INVENTOR:

Patented Apr. 4, 1933 JOSEPH A. WHELAN, or GREENWICH, conNEo'rIoU r MORTAR BOX Application filed August 20, 1931. Serial No. 558,219. 7 V

This invention relates to boxes for mixing mortar.

One object is to provide a mortar box constructed of heavy and rust-proof sheet metal,

with reinforced margins and bottom, and with side and end walls so flared or battered that several of the boxes of varying sizes may be nested for shipment'or transportation.

Another object is to provide a mortar box of sheet metal and having special forms of lock joints and other reinforcing features.

Still another object is to provide a mortar box of sheet metal and having the upper margins of the side walls reinforced and supported by side rails around and upon which the said margins are formed and secured, the said rails being extended at the ends of the box to form handles. 3

With these and such other objects in view as may be developed in the course of the following specification, attention is now directed to the accompanying drawings as exemplifying the preferred embodiment of the invention described in the specification and wherein Figure 1 is a side elevation of the improved mortar box;

Figure 2 is a top plan view;

Figure 3 is an end view;

Figure 4 is an enlarged section on the line 44 of Figure 1;

Figure 5 is an enlarged section on the line 55 of Figure 3;

Figure 6 is an enlarged section on the line 66 of Figure 1.

In carrying out my invention, I provide bottom, side and end pieces 1, 2 and 3 respectively, of suitably heavy and rust-proof sheet metal and of such dimensions and shapes as to produce the required size and shape of completed box, regard being had to the flared or battered arrangement of the sides and ends relative to the bottom and the marginal folding and overlapping of the said elements as shown in the drawings. The lower margins of the end pieces 3 are bent outwardly to form foot portions 4 which are positioned upon the horizontally disposed bottom 1 somewhat back of the edge thereof, the end pieces 3 being themselves battered or extended flaringly upward. The outer end margins of the bottom piece are thenfolded down over the. foot portions 4 as shown at 5 and fastened by rivets 6, thus forming leak-proof lock joints. The upperinargin's of the ends 3 are also turned outwardly to form bearingflanges 7 for engaging the end bars 8 to which they are secured by screws 9. The ends 3 are formed with laterally disposed triangular wings 10 adapted to rectify the angularity of;

the flared ends properfso that a plane extendedacross the inner edges of the wings would cut. the bottom 1 perpendicularly. The lateral margins of the bottom 1 are folded downwardly to form channeled feet 11 adapted to engage the lower margins of the sidewalls 12, the two being secured together by rivets 13 and thus forming leak-proof lockjoints. The side walls 12 are likewise flared or battered outwardly from bottom to top and the upper margins thereof are bent outwardly to form bearing flanges 14 adapted to engage the side rails 15. Angle irons 16 are then placed with their webs overlapping the adj acent vertical and upper horizontal faces of the rails 15 with the interposed flanges 14, and are secured firmly in place by screws 17.

' Likewise, the upper margins of the triangular wings 10 are flanged over upon the upper sides of the rails 15 and the angles 16 are extended thereover and fastened thereto in manner identical with that just'described for securing the upper margins of the sides to the said side rails and as indicated at 18. 'The side rails 15 are extended at the ends of the structure to form handles 19, and the side rails are secured to the end bars by screws 20. The contiguous margins of the wings '10 and the sides 2 are folded together to form lock- 1 joints 21, secured by rivets 22. A bottom rail 23 of wood or other suitable material is then extended medially from end to end beneath the bottom piece 1 and is secured in place by means of short angle bars 24 placed with their webs overlapping the 9 ends of the rail and the said lock joints 5, the said angles being secured in place by screws 25. g

It is thought that the structural features of this mortar box will befullyunderstood PATENT OFFI E? I from the foregoing description. It is apparent that several boxes of the structure described may be readily nested together for transportation with great-economy of space. The box itself presents an unusually strong vehicle for the mixing and carrying of mortar of various kinds, and While I have here shown and described certain structural features and methods of assembly, it is understood that the same may be varied in minor details, not departing from the spirit of the invention as defined in the appended claim. 7 I claim: c

A sheet metal mortar box, the same embodying an elongated, rectangular bottom portion channeled along its lateral margins, elongated, rectangular side walls locked at their lower margins within the said channels of the bottom portion and flared outwardly from bottom to top, the upper margins of the side Walls being reinforced,end walls flared from bottom to top to correspond withthe flared side walls, the said end walls having laterally disposed triangular wings connected with the end margins of the side walls and having their lower margins interfolded with the extended margins of thebottom portion,

and a bottom rail extended alongmedially from end to end beneath the bottom portion and secured at its ends to the said interfolded margins of bottom portion and end walls.

In testimony whereof I ailix'my signature.

JOSEPH A. WHELAN. 

